It should be close to 11:1 cr . Glad to hear the the body on yours is in good shape also it makes the project worlds easier. My interior is basically non existent . The car was a street/ strip car since probably the early 80's then sat since 98' [ belt date expired 98'] . Looks like it was never really fast or raced that much but they did put racing seats in front and remove the rear seat when they did the roll bar. I basically need to totally redo the interior. I got a little bit of bubbling around the rear wheel wells ,inners are good, an one small spot on lower front fender. Rest of the car is super solid which is why i bought it ,can't stand rust. Biggest problem i'm having right now is what color to paint this thing when it's done although i got a feeling i have some time to think about it ,lol.