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Discussion Starter · #1 ·
Was just wonder'in about these two cam's for a posible cam choise for my 350 sbc, #1 is the part # 12-243-3 a EX 4x4 grind with an Adv dur. of (270 in- 278 ex) (226 in- 234 ex @50) (.480 in- .498 ex lift ) (111 L/S) and cam #2 is the EX274 with an Adv dur. of (274 in-286 ex) ( 230 in-236 ex @50) ( .487 in- .490 ex lift) (110 L/S) both at a 1800 to 6000 rpm range, and both require the same valve spring. I do have these spring's ready to install when the time come's. I know that i other post's i've stated that i had a Comp 268H High Energy cam for this project but since switched to a flat top piston to get the C/R down under 9.5 that i could benifit more from a EX Energy grind. Just bounce'in around idea's because one of Summit's tech guy's told me that the EX274 would be a good match for my S/R Torquer head's, and the Edelbrock EPS manifold, saginaw 3speed, 3.40 gear's, and .28in radias tire's.(Oppinion's Please):confused: :confused: :thumbup:
 
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