I just installed an alum. Intake and headers. Now when I try to start the engine it shoots flames out of the carb. I tried adjusting the timing and messing with the carb a little. Also my plugs stick out too far for the headers, do they make shorter plugs for header applications. An info would be a big help. 73' K5 w/ 350, Edelbrock Perf. Intake, Holley 4bbl, Headman Headers.