Currently have factory cam (066 or 067...from what i gather, 350hp was 067) and was wondering how the 068 would work given that I have a/c, pb, and a 293 gears, 16 heads. My current cam idles nicely in gear at 650 (prolly will idle lower) and gives a hint of something there and hoping that a 068 would be more obvious but not kill my accessories or not require in gear idle more than 750-800!
I expect to loose a little bottom end response, but a little loss is ok because the bottom end is mostly unusable at this point (open rear and remaining so for the near term). I do not wanna have to deal with slow power brake response due to lower vacuum or stalling when a/c is running (although I do have an electric solenoid). I also wanna counter/mitigate pinging risk by going to a bigger cam. I have no plans to change heads or deck block to increase quench at this time. (I'm totally subscribed to the dynamic compression theory).
Another possibility is to install new rockers and be done which if I recall will give around 4 degrees more duration which is not a whole lot but may give me the edge I am looking for to run pump gas. Another possibility is both!
Any opinions?
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Fred Chavez
68 vert, 293, t400, ps/pb, ac
