quick57

I am starting a budget TPI swap on my 70 nova with a L48 350. The aftermarket cam currently in the 350 was installed back in the 80's and is an unknown grind. The cam is not radical but did have a noticeable chop at idle with the carb setup.

I have concerns that the stock 730 computer won't like the cam, and that the cam will be a mismatch for the stock TPI. However, I am willing to get chips burned to get the right tune but this might become very frustrating.

My second option is to install a low mile Comp cam Xe249h that cam with the TPI swap parts. I know this cam will work with the stock computer and puts the cam in the power band of the stock TPI.

Opinions? Remember this in a 8.5:1 compression 350 not an L98. My car is used as a HotRod with occasional bracket racing (I drive to and from the track 45 miles each way).

sofakingdom

iTrader: (1)

The 249 should probably be manageable.

The other, who knows.

Probably best to stick with what you at least know what it is.

bwiencek

Pull the cam out - there should be numbers on the end - from there you can make an informed decision. Guessing if you're going from a carb to EFI then the cam that was in there is probably designed to work with carbs (tight LSA, etc.) vs an EFI setup.

Atilla the Fun

I like the 249 anyway, for an 8.5:1 350. Get some new lifters, and a new timing set, add some ZDDP and enjoy a matched combo.