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#1
07-19-2021, 07:26 AM
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this conversation sounds very similar to my latest delima.....455 CAST piston ZERO deck motor and a selection of heads all with there own problem. The 7M5's...not enough exhaust bolt holes and 114 cc, the small valve 4X @98 cc then my lovely #62 @ 74 cc.....either get no compression (or header bolt holes) no flow with great compression, or TOO much compression with great flow.;.....lol
decided to work the 4X into a decent head. budget budget budget... |
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