Amazingly enough everything seems to work together on the car. IRS really makes a difference in the ride and the cut Jag springs and original Jag Bilstiens match the weight of the car. The brakes stop the car very well although the back locks up a little. The back end hangs out very well when powered through and seems neutral. Snaps back to center very nicely. The old Hurst shifter and Saginaw 4 speed are heavy handed but positive in the throws. With the fresh 350 it pulls like a freight train! Amazing how much stronger it is than the 305 that was first put in! 1st gear is too much tire spin but 2nd, 3rd and 4th really make up for it. I'm sure getting rid of the iron heads and waterpump helps!After starting up 350 engine #2 Wiped one of the lobes on the cam so had to pull down the engine. Put in fresh shortblock with roller cam to prevent it happening again. I have started bunches of new cams and always followed same procedure. Lots of Moly on the lobes and faces of the lifters, run up oil pressure before starting, minimize initial cranking and run it up to 2500 RPM for about a half hour. The face of the lifters were all slightly concave already and the one lifter was concave all to heck with about 1/8" missing! I'm not sure if it was a bad set of lifters or the missing zinc that the EPA has so wisely deleted from the oil. It was a Crane cam set and they went out of business shortly before startup. NO MORE FLAT TAPPETS! Heck, back in the day before I knew any better and the oil was good, I used a set of used lifters on a brand new Erson cam. No problems. I can't remember if I knew to run up the engine speed during break in. Ignorance is bliss!The roller engine runs fricking strong! Sold on rollers.