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  1. MikeB

    TH350 differences

    Are you sure it's a TH350 behind a six cylinder engine, and not a THM200 or THM200C? I have no idea if the 200-series were even used in late 70s Novas, but I'd certainly want be sure that you're getting a 350. As far as differences between various TH350s, I doubt there would be anything beyond...
  2. MikeB

    LMC Mirrors Chome VS Stainless Whats the difference?

    Craig -- How does the mirror support bracket install? And did you have to remove the window glass to mount it? Also, any issues with a truck that did NOT have this type of mirror from the factory?
  3. MikeB

    8 MPG?

    Assuming your engine is stock, 15" is low. Should be closer to 20". Heck, even with a moderate performance cam, my 355 will make 18-19" at idle. Have you checked for small vacuum leaks -- at both ends of vacuum hoses, EGR valve (if equipped), carb gasket, distributor canister, etc? As for...
  4. MikeB

    8 MPG?

    Dual exhaust thru low restriction mufflers? Heat riser valve working properly? If using a cat converter, is it fairly new? Are mechanical and vacuum advance working properly? A total of approx 45 degrees at low-load cruising speeds will help economy. That's initial + mechanical + vacuum.
  5. MikeB

    Wiring issue.....Weird problem to me

    Looks good.:favorites13: Please chime in here. I'm sure the OP can use more advice.
  6. MikeB

    Wiring issue.....Weird problem to me

    I did the same thing, and it was not a trivial job. I did make several modifications, such as feeding the fuse panel with an 8-gauge wire. I also found wiring the instrument cluster and the wiper/washer to be a real bitch. Mostly just trying to understand the factory schematics and connector...
  7. MikeB

    Voltage after fuse box

    If your 87 is like my 82, there are two large red wires that feed the fuse panel through the firewall connector. Both wires are connected to the fuse panel BAT bus, which in turn feeds some circuits like headlight switch & brake light switch. The BAT bus then feeds the ignition switch, which...
  8. MikeB

    Wiring issue.....Weird problem to me

    First of all, by "crank" do you mean turn over or start? But either way, that's not normal. One of the small gauge alternator wires is the "sense" wire, which is tied to some central point, like the distribution block on the firewall. That's where the alternator "senses" system voltage and...
  9. MikeB

    High output alternator

    I think a 12SI, or modified version of it, is a great way to go. In stock form there are various ratings, with the highest being 94 amps. Don't even think about buying a 100+ amp aftermarket alternator using the 10SI case, because its cooling is nowhere near as good as on the 12SI. I put a a...
  10. MikeB

    ‘77 C10 hp increase

    Some do, but not all. My truck has a 1997 "880" block with manual pump provision. It originally came with Vortec heads and, of course, EFI.
  11. MikeB

    ‘77 C10 hp increase

    Many HEI distributors have vacuum canisters that were designed to meet emission standards of old. I've seen some with as much as 20 degrees vacuum advance (to compensate for very low initial + centrifugal advance). So if you dial in, let's say, 35 degrees total advance (initial + centrifugal)...
  12. MikeB

    High output alternator

    You forgot brake lights.:) Yeah, a 65 amp alternator is not enough for that load, and could certainly be your problem. But I think a 140 or even 120 amp model should be more than enough. And if you can mange routing the large 4 gauge charging wire, you will have zero voltage drop from...
  13. MikeB

    High output alternator

    What is the voltage at the battery and headlights when they start to get dim? Have you used a DC current clamp on the fuse panel feed wire to measure the current draw with all accessories running?
  14. MikeB

    ‘77 C10 hp increase

    Yes, and check the ignition advance -- not just at idle but all the way up to 3000 RPM. I won't go into details here, but there is plenty of info on the Internet. Next up is a good exhaust system. If you don't have dual exhaust, get some price quotes or buy a kit. Back in the day I had a...
  15. MikeB

    Wire routing SNAFU

    Or bending the line before sliding on the tube nut.
  16. MikeB

    Wire routing SNAFU

    TMI
  17. MikeB

    Wire routing SNAFU

    Just found this pic I took when rewiring my truck earlier this year. It's what happens when you work too late! I remember thinking I was done for the night, then deciding to splice in this courtesy light holder. Didn't even notice the problem until the next day. :confused:
  18. MikeB

    Gauge light replacement

    Yes, 168 bulbs are the way to go. But more importantly, you'll need max voltage to the instrument cluster. Depending on the age and condition of your wiring harness and connectors, I wouldn't be surprised to see 12.5 volts or less with the alternator putting out 14.2 volts. Unfortunately I...
  19. MikeB

    High Torque Starter

    I love those things! I bought a rebuilt AC Delco for my 55 sedan, and have a cheap import version on my pickup that I bought more than 10 years ago for another vehicle. It's great for header clearance and still going strong. I believe they were used on mid-90s Corvettes and Impalas. And I'm...
  20. MikeB

    Great looking little Volvo

    I always thought those things looked cool. Back in the early 1980s, I had the later body style -- a 242 DL with 2.1 liter OHC engine with Bosch mechanical FI, 4 speed manual, and electric OD. Also a 245 DL wagon that my wife drove for over 125K miles. Both had 4 wheel disc brakes and handled...
  21. MikeB

    Not sure if I want to do brakes on my own, what's a decent price?

    So do rear disc seem any different than new drums, shoes, and wheel cylinders? I would think the major difference would be less fade under repeated usage, like a long down hill pulling a trailer.
  22. MikeB

    84 Chevy 305 intake and carb swap

    To add to my post above, I like the Lokar cables and bracket shown in the picture, but they are not cheap. Had trouble with an OE-style TV cable, where the trans end of the cable got hung up in the housing. The Lokar TV cable is slick as snot in that area. Also, on my 82 C10 I use both the...
  23. MikeB

    84 Chevy 305 intake and carb swap

    Aboslutely true! I used this Sonnax "TV Corrector Plate" on a friend's car to ensure proper TV cable travel. That means with throttle closed (choke off!) the cable should just start to have some tension (a few thousands pre-load), and when wide open, cable should be at end-of-travel. The...
  24. MikeB

    Charcoal Canister Repack

    I've never heard of that, but let us know if you come up with a way to do it. New ones cost >$70 at RockAuto.
  25. MikeB

    Aunt Fannies Old Air Products

    Having installed three Vintage Air units (two older ones with cable controls in a 69 C10 and 55 Chevy car, and one Gen II electronic control system in a 37 Chevy), I would probably go with Old Air for my non-AC 82 C10. One of the reasons is Old Air doesn't run the hoses into the passenger...

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