still trying to get my 225 conversion running. Motor has hei with new parts. Motor started with starter fuild but quit after a couple of seconds, fresh gas was present the whole time. Original carb float condition was questionable, so I just installed a profresionally(local carb shop) rebuilt rochester 2G. The motor still starts with fluid but runs a couple of seconds and dies. Could a spark problem be to blame? Also noticed oil pressure gauge was at about 40 psi. Is that high?