Thread: MSRA Back to the 50’s

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Back to the 50's is always a good time, good hearing you had a fun time! Just curious how the Holley EFI did for driving and fuel mileage on the trip? Helped a young guy put a Holley EFI on his bracket racer, he really likes what it did for the cars consistency and predictability on his ET!

Have to confess we trailered it up. An experienced tuner took my Holley Sniper tune from good to awesome. In the tuning session we picked up nearly 100 whp and mileage went from 9 to 15 mpg. Greatest thing to me was engine temp control which I strongly believe was a result of the computer controlled timing. Two days of steady cruising through high 80-mid 90 heat in the middle of the afternoon. Made the circuit around the fairground at least 5-6 times. Never got over 195, nor out of 2nd gear. I agree it is the consistency as well. Quite a change in altitude from DFW to Mn-St Paul. The car was beautiful through it all.

Sounds like another happy Holley customer, sure beats the heck out of fiddling with jets and timing every time you go someplace! Many moons ago we used to go to a big bracket race in Denver, from South Dakota, talk about a steep learning curve on the tune up at that altitude! The EFI units have certainly improved all those old nightmares!

Originally Posted by Dave Severson

Sounds like another happy Holley customer, sure beats the heck out of fiddling with jets and timing every time you go someplace! Many moons ago we used to go to a big bracket race in Denver, from South Dakota, talk about a steep learning curve on the tune up at that altitude! The EFI units have certainly improved all those old nightmares!

In 1968 when I’d take my 66 GTO to the track we would disconnect and plug the vacuum line and adjust the timing to about 34 degrees. Different conditions we’d adjust up or down and tune the carb as best we could with a screwdriver. The Holly guys with their boxes full of cams, springs, and jets were on the apex of technology, and we were in awe