Jack

Hi all, i have a c33 laurel which im putting an ld28 in and i want to turbo it, iv read all over the internet that the l20et exhaust manifold works so i sourced one of these and found that the studs dont quite line up, i did a little grinding work to make it fit but now when i try to fit the intake manifold on it cant fit around some parts of the exhaust manifold. i cant seem to find any info on this. Would an l20et intake manifold fit? what else can i do other than getting a custom manifold as i want to keep costs down?