Need Advice On New Heads Or New Intake 351c

[dusto1002]

Have a 351c with 2v heads with the most undesireable 76cc heads, but I have some Aussie heads in my possession and either swapping in those or getting a new intake is in the budget.

Little about the engine, its got full bolt ons, and is using a performer intake now, its got 9 cr. Its cammed with a 284he comp cams and has 4.10 with posi. My can card recommends 9.5+ cr, with the new heads I'll be right under 11cr. I realize I'll have to dial timing back for pump gas.

Anyways, new Aussie heads for compression boost and better combustion? Or new intake with better flow? Can't do both unfortunately. My motor is balanced to 6500rpm btw. My redline is set at 5500 conservatively.

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[tos]

Heads, That Performer intake will work better with those Aussie heads than a new intake will work with those 2v heads. A better flow intake wont do you any good if you keep those heads on there. Those old heads will limit your flow so you'd just be wasting your money with a new intake and those old heads..

 

[dusto1002]

Ya i was leaning that way, appreciate it tos

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[Edster]

Heads, port match the intake if possible. If not you'll still get more torque and horsepower with the Aussie heads.

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