I figured it up as....

Compression Ratio Calculator

--------------------------------------------------------------------------------
4.03 Bore - (Inches)
3.622 Stroke - (Inches)
0 Piston Volume - (CC's, Negative for Dome)
67 Combustion Chamber Volume - (CC's)
.040 Compressed Gasket Thickness - (Inches)
.008 Piston to Deck Clearance - (Inches)
--------------------------------------------------------------------------------
10.8:1 Compression Ratio

 

Your a smidge off since his slugs have valve reliefs in them there is prolly 2-3 cc's there

 

yep they have -4cc valve reliefs

 

took me a sunday after noon to pull it and had it at the machine shop that tuesday..i gotta pretty good friend that works there..they had it done within a 2 weeks..they were swamped with dirt track motors..i got it back this past tuesday and had everything back on it waiting for sunday..my only day off and had it runnin..i had the oring fixed last night on the highway..was there for 1 hour..only three people stopped by on a highly traveled highway..first guy was pretty freaky...seemed like the type that would kidnapp a lady in my situation..the second guy was a hispanic that i couldnt understand and the third guy was a guy i dynod his truck awhile back..he pulled up laughin he seen the pool of gas and thought it was oil...i figured more people would stop..hell even a hipo just look over and kept on drivin..


stock gasket i think is .055

 

did alill tuning on it today just to get it to idle better and set the timing at 25 for now till i get to tune it..heres a idle vid and easy 52-95mph speedo vid

idle


speedo


plus a pic of how its sets now