Going from ET drag radials to ET streets do I really need to change my front radial tires. I don't go on the highway,race most of the time with some short trips to some local shows.

I ran my car for many years that way with 106 or so trap speeds and never had an issue.

When the mph got over 115 that's when I started having more of a problem with it, it always felt like something was wrong or the back of the car was trying to come around at weird times.

I then put bias front runners on it for, and it went so straight and smooth at 123mph it's almost boring.....even on a bumpy track with ruts in it. I did it mostly for the weight savings but it fixed the stability problem by default.

I'd say try it and see if you are OK with it. I've seen cars do 140mph with mixed tires and nobody had a problem with it, it's kind of a driver preference thing.

Don't need any surprizes, I go through the traps at 122-124 mph. 3700lbs.+ with me in it. I think I will change them.

I have radials on frt of my 65.Bias on the rear.At 110 its stable as a rock.I dont try and road race with it though.My kid was running the same on his 62 300 for 8 years and he put a ton of street strip miles on it.Never any problems.Rocky

I have ran mixed bias and radails both ways, radials in front , bias in back and bias in front and radials in back At the rack is no problems 128.+ MPH on a 3450 lbs street car, on the street it was a problem, made the car feel stupid like it had real loose wore out front steering components Change them racals and don't look back I have several sest of wheels and tires so I can switch all of them at the same time

On the street/highway especially when it comes to being in Rain/weather mixing is a big no no. at the track you are fine. Pretty much ever super stock racer and radial tire racer are using Rear radial and front bias front runner.