Xer273 no tune
Looking at a decent priced ls1 t56 swap and researching all the details. It has an xer273 cam and heads where changed to 799 with supporting valvetrain however swap was done and motor upgraded with no tune for around 400 miles. Wondering what damage is possible from a stock tune with this cam and heads. I'm assuming it's gonna run rough but is there any way to tell if it's less than conservative. I'm planning on checking plug color and maybe compression check. Or am I worrying too much here.
Thanks in advance
Looking at a decent priced ls1 t56 swap and researching all the details. It has an xer273 cam and heads where changed to 799 with supporting valvetrain however swap was done and motor upgraded with no tune for around 400 miles. Wondering what damage is possible from a stock tune with this cam and heads. I'm assuming it's gonna run rough but is there any way to tell if it's less than conservative. I'm planning on checking plug color and maybe compression check. Or am I worrying too much here.
Thanks in advance
But if he drove it like he stole it...









