I'm converting my RR 88 Mustang to carb, and will be running the Parker with a Holley DP. Does anybody know what sort of hood clearance I'll need before I buy a hood with TOO SMALL a cowl? Will a 2" cowl work, or do I need to go bigger? No chance the stocker will clear? I'm sure a 4" will work, but would prefer smaller if it will fit.