since u r doing this gradually...I vote u use the 351 heads if u already have them or have a line on some at a decent price. The guys r just saying they are going to hold u back...which I think u already knew. The car is still going to make power, but to Maximize ur potential....the heads will need upgraded in the future.
I also vote for a roller cam block...maybe with a main support.
Ryan
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65 Fastback 91 roller 306, H/C/I
AOD-Bauman, PI Stallion, 4.10's and traction loc
04 Grand Cherokee Freedom Edition
79 Ford F-250 4x4 - Restored
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