Quote:
Originally Posted by Ironangel
Run your valves again to verify you dont have one or more hanging open. Use the EOIC method, never mind cutting a valve cover. Secondly, maybe I missed it but what cam & lifters are you running? Thirdly, find a proven functional carb off another small block with comparable cam and heads just to verify a carb problem. Surely a friend or board member, perhaps a local speed shop or drag racer has a carb laying around to loan for a couple of test hits?...Lastly, read up on mods to the accelerator pumps on those AFB carbs. With those heads and a comparable semi race cam a stock 600 cfm AFB squirter aint going to cut it. I'm thinking either more volume of the squirt, and/or a longer duration of the squirt will make your 327 snap to attention...I'd loan you a proven Cliff Ruggles Quadrajet if you were closer and running a spread bore intake...Good luck, your well on your way to becoming an expert AFB guy!  |
Thanks Ironangel! I appreciate the advice. I was thinking old school with the valve adjustment when I suggested that but have since been turned on to the EOIC method and watched a few good videos on this. I just remember seeing my dad do this running a few decades ago and haven't needed to adjust an SBC valves until now.
Regarding the cam, it's mild at best, no lope or choppy idle but I cannot be certain what the specs are on the cam and lifters. I'd say its similar to what may have been in this 327 stock and I doubt it was one of the HP 'Vette units. My knowledge is that it was from a '65 Nova but even this could have been 275HP+.
Noting again that I had the previous Carter AFB 600 CFM with similar issues, this makes me believe it's not the carb since my dad was a carb guru and rebuilt AFB, Holley and Q-Jet's for a hobby. I'll definitely take a look at a borrowed carb if the float adjustment doesn't do the trick as well as accelerator pump alternates.
Thanks again for the comments and encouragement!