JC6715

Way to go rookie... Just discovered that my new AFR 185 heads have what I think are thermactor ports on both sides of each head. I was running the car with three out of the four ports unplugged and blowing exhaust into the engine bay. Having these open made a horrible sound like noisy roller rockers but I now know it was just the valves closing becuase when I put my fingers over the ports the "noisy rocker" sound disappeared.

Just wanted to share this with other rookies that don't know any better, like me...

Quick question, will plugging up these ports cause the engine to run better or give any other noticable performance effects? It's raining in Oregon and the Stang doesn't play when the roads are wet...

rmodel65

must have the emission versions mine are port free

Joe1967

plug em up


or run tiny headers and mufflers on them for the lolz

JC6715

Ha! Yeah I already [plugged'em up, sounds like a sowing machine under the hood now...


How much HP you think i'd get on that auxillary exhaust sytem? Does flow master make 1/2" inlet mufflers? Ha!




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Joe1967

oh the aux system adds about .0000000001 hp!!!
not to mention if you could get a hold of a baby turbo...

nba1341

heard about something like that on trick flows too.... never touched or seen a custom head so yea good to know if i ever have money to get heads