Vetteman761
Registered
So Need you guys Expertise, I just got done rebuilding my gen1 motor , bored out to 1397 have also a gen 2 crank in it, 13.5.1 pistons, have a 80 thousands base plate in and also a .030 head gasket, thinking I should be right at 13 to 1 ratio, anyhoo started it other day for first time seemed fine, actually rode it today and taking off smoothly no pinging but I got on it a lil bit a few times and heard the pinging, had about gallon or so of 87 in it from when I last rode it , filled it up with 93 on top of that, so I dont know, anybody else with close to my numbers had that problem and if so what is the answer? I sanded off edges of pistons to reduce chances of hotspots but maybe I didnt do enough? any suggestions would be appreciated