I have had a few people tell me I need to switch from large ovals to rectangular port heads because of the characteristics of my cam. This is what I got from one person.
small peanut port ovals idle-4000rpm's low torque head
large oval port 1500-6000 rpm's bottom end torque/mid range power
Rectangular port heads 3000-7500 rpm's
My cam is 258@.50,.615 lift,108 lobe sep,solid lifter
I need some info before I go out and buy a different set of heads. I know its spring break but someone has to be around for info.
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