Carburetors, Headers and Exhaust
The carburetors homemade heat shield with a set of modified Cannon headers behind.
Speaking of headers, buy the
The "straight down and straight
back" 4-1 (4 into 1) headers most common here in the
Stahl had a great system in the '70's but it required cutting the bell housing and engine backing plate. Ken Slagle had Stahl headers on his championship F-Prod car. I mention all this because of a recent discussion with Dave Belden, who's been racing a G-Production Spitfire since we were both young. Now he runs Vintage events and the Volvo Historic (SCCA) series in the Northeast. Hi, Dave! He regularly switches between the GP 1147cc engine and 1300cc FP engine, depending which race series he's entering.
I have a stock Midas Muffler 1974 Spitfire muffler on the back. I had a Pacesetter or some such brand (2-chrome tips) on long ago for about 2 weeks. Toooo Loud! Present setup sounds real nice. Built up engine and headers make for louder exhaust than stock engine and manifold even with the stock muffler.
I had foam air cleaners till a couple years ago and the foam disintegrated. Will probably get K&N's soon. Carbs were rebuilt by Mike Barratt himself back in the 70's!