Finnegan’s Hemi powered 1955 Chevrolet he calls Blasphemi is one bad machine, but it just keeps getting badder and badder thanks to help from guys like Peter Harrell at Harrell Engine and Dyno. With some help from a few others, this bad boy has gotten some adjustments and improvements that will help put all the HED power to the ground. It’s going to be a beast the next time down the dragstrip. Watch the dyno session as they put the power to the ground over and over again, and just about shake the dyno walls apart.

Video Description:

Episode 258 of Mike Finnegan’s Garage is all about bringing Blasphemi back to life. My 1955 Chevrolet Bel Air has been hibernating all year long while we continue working on it to create a more reliable, fun street/strip car. So far we’ve narrowed the Quick Performance 9 inch rearend, we’ve replaced the triple disc Mantic USA clutch, and today we are headed back to the dyno several new bolt-on parts to try. We’ll be testing my old stainless steel headers with 2-1/4 stepped to 2-3/8 diameter primary tubes (3.5-inch OD collectors) against my new 2-3/8 stepped to 2-1/2-inch primary tubes headers (4-1/2-inch OD collectors). We’ll also try a new, larger diameter throttlebody from Phil Rohr, and we are gonna test the 528ci Pete Harrell-built hemi with and without a Walker Performance Filtration air filter on top of the four-port throttlebody. We make more dyno pulls than ever in the quest for reliably putting 1000WHP down to the chassis dyno and deciding will or won’t we be ready for Hot Rod Drag Week 2023.