Cams for 318's

I know everybody likes to poo-poo slapper bars, but I was impressed with mine.
However mine were not the kind that bolt onto the springs.
To install mine, I had to remove the factory spring perches, and bolt the bars on there. They were designed by a Performance Shop in Winnipeg in the late 60s/early 70s; especially for Mopar As, and fit perfectly. All I had to do was adjust the bumper at the front, and IIRC, cut all the spring clamps behind the axle.
And the shock-mount on these was raised a bit.
They way they were designed/installed, they were kindof like really short ladderbars.
With those, and 4.10s, she launched pretty good on G60s on the street, if I could control my clutch-leg.... with the 3400# Zoom B&B...... That 340-car was hard on clutches.
Track times were typical, of factory-stock 340 cars back in the day, namely 98mph @14.4 on the E70-14s with 3.55s, thru the muffs.