10/22/2023 0 Comments Lt-1 cam 350![]() If you are wanting to enjoy the car for many trouble free miles, go with the 178. I can't imagine running the 754 regularly on a street car. Pulled hard to 8,000 rpm with small diameter long tube headers. Put a 140 cam in a buddy's 68 z in 1970, with the 142 springs. I have personal experience with both, many years ago. The 754 really does not have sufficient vac. The 140 barely has sufficient vac at idle for a street car with power brakes. ![]() ![]() ![]() Still pulls strong to 6500, and you are highly unlikely to exceed that on a regular basis if you are driving this on the street. I am obviously in the minority here, but.
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