(cut and paste) high rpms

ski4evr

Well-known member
I have 3.50 gears, a c4 and an essentially stock 200. I also have the stock 13" wheels with the goofy hub caps. The only thing for performance that I've done so far is the addition of a pertronix II and flamethrower coil. At 80 miles an hour on the highway, I'm hitting 5000 rpm (installed a small tach on the steering column). The engine sounds fine... I just don't want to take it faster until I restore the suspension and brakes. I'm confident the engine can do more... it just can't breath with stock carb, exhaust and the stock '66 log head.

ski

Inliner wrote: Either your tach is not set to the 6 cyl setting, your tranny isn´t going into 3rd gear, or you have much steeper gears than 3.50s.

I checked the tach and it is set correctly. I also compared it to the one I hook up for tuneups (Sears/Craftsman tach adn dwell meter) and it checks. The transmission also goes into third. Is it my tires (13")?

ski
 
I have 3:55 gears, C4 and 14 inch 700x14 tires and my rpm is 3400 @ 70 mph? It may be the 13 inchers, slap a set of 14's and bring down the rpm, 5,000 rpm will kill your engine and your ears?
 
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