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Some of you may of seen the "Big Honda Thread" I started. Well I thought I'd start on my blaster as its much cheaper to mess up and re cut the head on it.

My UCCR is coming out at about 13.3. and kicking about 180lbs cold. Will I be safe with pump gas? Before I did the head it had 160lbs and I always ran it on pump with no problems.

So whats the verdict? Good or keep opening up the chamber?

57 stroke
72.25 bore
.040 squish
10mm band
194 exhaust
 

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There again this is my .02, but I try to not go over 12.75 UCCR for running on premium pump gas. If it is an easy thing to do, you might try changing base gasket by adding .005 to help adjust the UCCR, and that shouldnt have much effect with your squish clearance or port timing. I dont have any of my math formulas here at work, but that may help out.
 
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