Westech Performance Group in Mira Loma, California, is the site of countless engine-dyno tests you've seen in magazines for almost 20 years. In this Roadkill Extra, David Freiburger gives you a tour of the place that's deeper than you've ever before seen.

This time on the Friday Roadkill Extra Q&A, David Freiburger asks Roadkill Garage co-host Steve Dulcich some probing questions about his background in paint and engine expertise.

On episode 58 of Roadkill, you saw Freiburger and Finnegan find their dream cars. Now that these beauties are a part of the Roadkill Gauntlet, watch Freiburger give a in depth walk around of the Datsun Mini Truck.

After a nation wide search, Dulcich was able to find this gem. Check out his 1967 Dodge D300!

The guys play teacher as they give an important tech tip on measuring piston deck height.

Inline-six engines are hard to come by these days. So why does Dulcich have one in the shop? Check out this Roadkill Extra to find out.

Freiburger is always a sucker for a good junkyard. Watch to see what he finds as he tours the wondrous maze that is Dulcich's junkyard.

In episode 11 of Roadkill Garage, you saw the guys take a road trip in their 1967 Pontiac Bonneville to where else, the Bonneville Salt Flats! Here is a backseat look at how smooth and good the road trip actually was in the wagon.

Remember the Dodge 360 small-block engine from Roadkill Garage episodes 3 and 4? It was later run on the dyno for Engine Masters episode 14, and then rebuilt, hopped up, and retested for a future Engine Masters.

Do you know Elana Scherr yet? She’s the gearhead editor of Roadkill magazine and Roadkill.com, and we love it when we can snag her for an episode of Roadkill Extra. This time she’s in the pits talking Hemis at Hot Rod Drag Week 2016.

Here’s a bit of an uncommon test for a home engine builder: checking the rotating torque, or the amount of internal friction that cause a parasitic drag, reducing the engine’s horsepower output. Freiburger and Dulcich show you the old-school measuring technique from the set of Roadkill Garage with an engine that will wind up in the Crusher Camaro.