Holley vs. Eddy 273

OOPS
Missed the 4 speed part. If it was my car I would go with a 600DP, if like he said 3.55 gear or higher.

That's what I been running in my 273 with 4 speed, 4.10 rear & 26" tire height for the last 12years & 10Kmiles...Great throttle response! Two issues have popped up....a very small leak (10 drops worth) under the throttle linkage when it sits in the winter for long periods of times and rust/sediment built up from the original gas line & tank corrosion clogged my carb and I had to rebuild the front bowl, front end gaskets & replaced the power valve. All in all, I'm very happy with it!